175 lines
6.1 KiB
C
175 lines
6.1 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration |
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\\ / A nd | For copyright notice see file Copyright
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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Application
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patchIntegrate
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Description
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Calculates the integral of the specified field over the specified patch.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "cyclicPolyPatch.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Main program:
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int main(int argc, char *argv[])
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{
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# include "addRegionOption.H"
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timeSelector::addOptions();
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argList::validArgs.append("fieldName");
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argList::validArgs.append("patchName");
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# include "setRootCase.H"
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# include "createTime.H"
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instantList timeDirs = timeSelector::select0(runTime, args);
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# include "createNamedMesh.H"
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word fieldName(args.additionalArgs()[0]);
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word patchName(args.additionalArgs()[1]);
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forAll(timeDirs, timeI)
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{
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runTime.setTime(timeDirs[timeI], timeI);
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Info<< "Time = " << runTime.timeName() << endl;
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IOobject fieldHeader
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(
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fieldName,
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runTime.timeName(),
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mesh,
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IOobject::MUST_READ
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);
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// Check field exists
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if (fieldHeader.headerOk())
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{
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mesh.readUpdate();
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label patchi = mesh.boundaryMesh().findPatchID(patchName);
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if (patchi < 0)
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{
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FatalError
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<< "Unable to find patch " << patchName << nl
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<< exit(FatalError);
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}
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// Give patch area
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if (isA<cyclicPolyPatch>(mesh.boundaryMesh()[patchi]))
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{
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Info<< " Cyclic patch vector area: " << nl;
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label nFaces = mesh.boundaryMesh()[patchi].size();
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vector sum1 = vector::zero;
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vector sum2 = vector::zero;
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for (label i=0; i<nFaces/2; i++)
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{
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sum1 += mesh.Sf().boundaryField()[patchi][i];
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sum2 += mesh.Sf().boundaryField()[patchi][i+nFaces/2];
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}
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reduce(sum1, sumOp<vector>());
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reduce(sum2, sumOp<vector>());
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Info<< " - half 1 = " << sum1 << ", " << mag(sum1) << nl
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<< " - half 2 = " << sum2 << ", " << mag(sum2) << nl
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<< " - total = " << (sum1 + sum2) << ", "
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<< mag(sum1 + sum2) << endl;
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Info<< " Cyclic patch area magnitude = "
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<< gSum(mesh.magSf().boundaryField()[patchi])/2.0 << endl;
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}
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else
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{
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Info<< " Area vector of patch "
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<< patchName << '[' << patchi << ']' << " = "
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<< gSum(mesh.Sf().boundaryField()[patchi]) << endl;
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Info<< " Area magnitude of patch "
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<< patchName << '[' << patchi << ']' << " = "
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<< gSum(mesh.magSf().boundaryField()[patchi]) << endl;
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}
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// Read field and calc integral
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if (fieldHeader.headerClassName() == volScalarField::typeName)
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{
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Info<< " Reading " << volScalarField::typeName << " "
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<< fieldName << endl;
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volScalarField field(fieldHeader, mesh);
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Info<< " Integral of " << fieldName
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<< " over vector area of patch "
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<< patchName << '[' << patchi << ']' << " = "
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<< gSum
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(
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mesh.Sf().boundaryField()[patchi]
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*field.boundaryField()[patchi]
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)
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<< nl;
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Info<< " Integral of " << fieldName
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<< " over area magnitude of patch "
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<< patchName << '[' << patchi << ']' << " = "
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<< gSum
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(
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mesh.magSf().boundaryField()[patchi]
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*field.boundaryField()[patchi]
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)
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<< nl;
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}
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else if
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(
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fieldHeader.headerClassName() == surfaceScalarField::typeName
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)
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{
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Info<< " Reading " << surfaceScalarField::typeName << " "
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<< fieldName << endl;
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surfaceScalarField field(fieldHeader, mesh);
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scalar sumField = gSum(field.boundaryField()[patchi]);
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Info<< " Integral of " << fieldName << " over patch "
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<< patchName << '[' << patchi << ']' << " = "
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<< sumField << nl;
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}
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else
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{
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FatalError
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<< "Only possible to integrate "
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<< volScalarField::typeName << "s "
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<< "and " << surfaceScalarField::typeName << "s"
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<< nl << exit(FatalError);
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}
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}
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else
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{
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Info<< " No field " << fieldName << endl;
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}
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Info<< endl;
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}
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Info<< "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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